Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Connecting method of steel-concrete combined arch rib
The invention discloses a steel-concrete combined arch rib connecting method, which comprises the following steps of: adopting a steel fiber concrete arch rib post-pouring section on a steel-concrete combined part, applying prestress by using finish rolling deformed steel bars and high-strength anchor bolts, additionally arranging stiffening inclined web pipes and the like. The adverse situation that stress concentration is caused by sudden change of the section of the steel-concrete combined arch rib at the steel-concrete combined part is effectively overcome, and generation of structural cracks is avoided; a flange connecting structure is adopted inside the chord pipe joint of the steel pipe arch rib, and a three-piece type steel pipe arch joint pipe is adopted outside the chord pipe joint of the steel pipe arch rib, so that the steel pipe arch rib can be quickly mounted, the working efficiency is improved, the chord pipe joint welded on site can be effectively reinforced, and the engineering quality is guaranteed; the long-strip-shaped flange bolt holes in the flange are formed in the normal direction and the tangential direction respectively, the influence of machining errors and welding deformation can be better overcome, and the construction progress can be effectively accelerated.
本发明公开了一种钢混组合拱肋的连接方法，该方法通过在钢混结合部采用钢纤维混凝土拱肋后浇段、使用精轧螺纹钢和高强的锚固螺栓施加预应力和增设加劲斜腹管等措施，有效克服了钢混组合拱肋在钢混结合部因截面突变引起应力集中的不利局面，避免了结构裂缝的产生；在钢管拱肋的弦管接头部位，内部采用了法兰连接结构，外部采用三片式钢管拱接头管，既能快速完成钢管拱肋的安装、提高工效，又能对现场焊接的弦管接头部位进行有效补强，保障了工程质量；其中，法兰上长条形的法兰螺栓孔分别按法向与切向布置，更有利于克服加工误差与焊接变形的影响，能有效加快施工进度。
Connecting method of steel-concrete combined arch rib
The invention discloses a steel-concrete combined arch rib connecting method, which comprises the following steps of: adopting a steel fiber concrete arch rib post-pouring section on a steel-concrete combined part, applying prestress by using finish rolling deformed steel bars and high-strength anchor bolts, additionally arranging stiffening inclined web pipes and the like. The adverse situation that stress concentration is caused by sudden change of the section of the steel-concrete combined arch rib at the steel-concrete combined part is effectively overcome, and generation of structural cracks is avoided; a flange connecting structure is adopted inside the chord pipe joint of the steel pipe arch rib, and a three-piece type steel pipe arch joint pipe is adopted outside the chord pipe joint of the steel pipe arch rib, so that the steel pipe arch rib can be quickly mounted, the working efficiency is improved, the chord pipe joint welded on site can be effectively reinforced, and the engineering quality is guaranteed; the long-strip-shaped flange bolt holes in the flange are formed in the normal direction and the tangential direction respectively, the influence of machining errors and welding deformation can be better overcome, and the construction progress can be effectively accelerated.
本发明公开了一种钢混组合拱肋的连接方法，该方法通过在钢混结合部采用钢纤维混凝土拱肋后浇段、使用精轧螺纹钢和高强的锚固螺栓施加预应力和增设加劲斜腹管等措施，有效克服了钢混组合拱肋在钢混结合部因截面突变引起应力集中的不利局面，避免了结构裂缝的产生；在钢管拱肋的弦管接头部位，内部采用了法兰连接结构，外部采用三片式钢管拱接头管，既能快速完成钢管拱肋的安装、提高工效，又能对现场焊接的弦管接头部位进行有效补强，保障了工程质量；其中，法兰上长条形的法兰螺栓孔分别按法向与切向布置，更有利于克服加工误差与焊接变形的影响，能有效加快施工进度。
Connecting method of steel-concrete combined arch rib
一种钢混组合拱肋的连接方法
ZHANG ZHEMING (Autor:in) / WU FEI (Autor:in) / HU XING (Autor:in) / GONG LILI (Autor:in) / ZHOU SHENG (Autor:in)
30.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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